Graining tool



Jan 9, 11923., LMLQQL P. 4A. GsTALnE-R.

GRAINING TOOL. FILED APR.16.1921.

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@WATES PATENT Olffilmld,

PAUL A. GSTALDER, OF PITTSBURGH, PENNSYLVANIA, ASSlEGNOR TO 'TI-1E OHlO VARNJESH COMPANY, OF CLEVELAND, 02H10, A CORPORATQN OF OHIO.

l GRAINING TOOL.

Application filed April 16,

To all echo/m t may conce/rn:

Be it known that l, PAUL A. GsTALnnn, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and tritate of Pennsylvania, have invented a certain new and useful improvement in Grainiug Tools, of which the following is a full, clear, and exact description, reference being had. to the accompanying drawings.

This invention relates to graining appliances and is primarily concerned with improvements in a form of tool which is adapted for use in producing a grain structure representing various forms of wood.

@raining tools operable by a translatory and rocking .motion have heretofore been employed for purposes of providing various forms of graining. These tools usually comprise a structure having an arcuate bottom, on which :is secured a graining pad that is provided with a series of concentric ribs. 1lillhen a tool of this character is moved across the surface to be grained by a combined rocking and dragging motion, the lines which are formed on the distemper coat correspond approximately to the grained structure of wood, but are too regular, and too sharply defined, to give the natural effect desired.

Accordingly, one of the objects o-f my invention .is the provision of a tool wherein the graining pad is of such character that the graining lines produced are irregular, uneven, and vary in a form closely resembling the grained structure of wood.

The means for accomplishing the above objects will be more fully set forth in the following description, which relates to the drawing, and the essential characteristics of my invention will be set forth in the claim.

ln the drawings, l .is a perspective view of a graining tool embodying features of my invention; Fig. 2 is a vertical section` taken longitudinally through the center of o the tool; Fig. 3 is a development of the graining surface on the bottom of the tool; Fig. il is a specimen of the result produced by drawing the graining tool across a surface to be grained.

ll/ly invention contemplates the provision of a graining surface which may be adapted for use in connection with the usual seg- 1921i. Serial No. 461,973.

mental body of the tool, and produces its result by the usual translatory and rocking movement of the tool across the surface to be grained. Accordingly, in Figs. l and 2, l have shown such a tool as embodied in a structure having an arcuate head 10 to which is secured a suitable handle 1l. The arcuate portion of the head is arranged to receive a graining pad l2, which is preferably a strip of rubber having series of ribs 13 projecting outwardly from the face thereof.

rlhe effectiveness of the graining representation produced is dependent not only on the manner with which the tool is moved across the surface to be grained, but also upon the character of the ribs which project from the graining pad l2. lin this connection, l have found that a. pad provided with a series of nesting approximately parallel approximately V-shaped ribs 13 is very effective for producing` a satisfactory form of grain structure. Furthermore, l have found that a more desirable representation is obtained if the V-shaped ribs are rippled throughout their entire length.

lin regard to the spacing of the ribs on the pad, it is desirable that the uniformity of spacing be avoided, and that the degree of rippling be also varied so as to prevent dissimilar igures. lln Fig. 3 the developed surface of the graining pad shows the intermediate' portion of the V-shaped ribs as being thicker than the end portions thereof, and also shows the grooves as being unevenly spaced and dissimilar in form.

From the foregoing description, and from an inspection of Fig. 4, (which represents a result produced by rocking and dragging the tool of Figs. l, 2 and 3), it will be seen that ,l have provided a graining tool operable in a lnanner which is well known in the process of graining, but giving greatly superior results, namely, a graining effect which very closely corresponds to the actual grain structure of wood.

Having thus described my invention, lf claim:

In a graining tool, the combination of a body portion and a graining portion, said body portion comprising a handle and a seg` mental cylindrical portion secured thereto, the graining pad being attached to said seg- Inental cylindrical portion and comprising graining tool may be rocked and drawn 2L hase portion having a plurality of substanacross the surface thereb)7 producing :m irtially V-shapeol ribs thereon, said ribs being regular form corresponding` to Wood grain. 10 rppled throughout their extent to form dis- In testimony whereof, l. hereunto. :ix my similar figures, the length of said substansignature.

tially V-shaped ribs descreasing from one end of thev pad tothe other, 4whereby .thel PAUL A. GSTALDER. 

